// Test camera capture with colorspace conversion
var camera = use('camera');
var surface = use('sdl3/surface');
var json = use('json');

// Get first camera
var cameras = camera.list();
if (length(cameras) == 0) {
  log.console("No cameras found!");
  $stop();
}

var cam_id = cameras[0];
log.console("Using camera:", camera.name(cam_id));

// Open camera with default settings
var cam = camera.open(cam_id);
if (!cam) {
  log.console("Failed to open camera!");
  $stop();
}

// Get the format being used
var format = cam.get_format();
log.console("\nCamera format:");
log.console("  Resolution:", format.width + "x" + format.height);
log.console("  Pixel format:", format.format);
log.console("  Colorspace:", format.colorspace);

// Handle camera approval
var approved = false;
$receiver(e => {
  if (e.type == 'camera_device_approved') {
    log.console("\nCamera approved!");
    approved = true;
  } else if (e.type == 'camera_device_denied') {
    log.error("Camera access denied!");
    $stop();
  }
});

// Wait for approval then capture
var srgb_surf = null;
var linear_surf = null;
var jpeg_surf = null;
var hd_surf = null;

function capture_test() {
  if (!approved) {
    $delay(capture_test, 0.1);
    return;
  }

  log.console("\nCapturing frame...");
  var surf = cam.capture();

  if (!surf) {
    log.console("No frame captured yet, retrying...");
    $delay(capture_test, 0.1);
    return;
  }

  log.console("\nCaptured surface:");
  log.console("  Size:", surf.width + "x" + surf.height);
  log.console("  Format:", surf.format);

  // Test various colorspace conversions
  log.console("\nTesting colorspace conversions:");

  // Convert to sRGB if not already
  var convert_srgb = function() {
    srgb_surf = surf.convert(surf.format, "srgb");
    log.console("  Converted to sRGB colorspace");
  } disruption {
    log.console("  sRGB conversion failed");
  }
  if (format.colorspace != "srgb") {
    convert_srgb();
  }

  // Convert to linear sRGB for processing
  var convert_linear = function() {
    linear_surf = surf.convert("rgba8888", "srgb_linear");
    log.console("  Converted to linear sRGB (RGBA8888) for processing");
  } disruption {
    log.console("  Linear sRGB conversion failed");
  }
  convert_linear();

  // Convert to JPEG colorspace (common for compression)
  var convert_jpeg = function() {
    jpeg_surf = surf.convert("rgb888", "jpeg");
    log.console("  Converted to JPEG colorspace (RGB888) for compression");
  } disruption {
    log.console("  JPEG colorspace conversion failed");
  }
  convert_jpeg();

  // If YUV format, try BT.709 (HD video standard)
  var convert_hd = function() {
    hd_surf = surf.convert(surf.format, "bt709_limited");
    log.console("  Converted to BT.709 limited (HD video standard)");
  } disruption {
    log.console("  BT.709 conversion failed");
  }
  if (search(surf.format, "yuv") != null || search(surf.format, "yuy") != null) {
    convert_hd();
  }

  log.console("\nTest complete!");
  $stop();
}

// Start capture test after a short delay
$delay(capture_test, 0.5);